We are power hogs as far as computer, tv's, microwave, freezer in basement etc. Our residential fridge is the least of our woories. LOL. We run our genny at meal times to mitigate the generator use but we did that before we got our residential fridge so nothing changed there. When we put our residential in a few years ago we threw an extra 480 watts of solar on the roof which pretty much covers off all the power the fridge uses. Solar is cheap in the big scheeme of things. We dry camp reasonably often. The residential fridge hasn't made any difference to how we dry camp.
Throw some solar on the roof and be done with it.